Type casting in java widening casting vs narrowing casting

Type Casting Java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package lab2TypeCasting;

/**
 *
 * @author Adeel
 */
public class TypeCasting {
    
    public static void main(String[] args) {
     /*
     * 
     * Widening Casting
     *
     */
            
            byte b = 4;
            
            short s = b;
            System.out.println(s);
            
            int i = s;
            System.out.println(i);
            
            long l = i;
            System.out.println(l);
            
            float f = l;
            System.out.println(f);
            
            double d = f;
            System.out.println(d);
            
    /* Widening Casting Ends Here */
            
    /*
    * 
    * Narrowing Casting
    *
    */
                
                        
            f = (float)d;
            System.out.println("Double to float is: "+f);
            
            l = (long)f;
            System.out.println("Float to long is: "+l);
            
            i = (int)l;
            System.out.println("long to int is: "+i);
            
            s = (short)i;
            System.out.println("int to Short is: "+s);
            
            b = (byte)s;
            System.out.println("Short to byte is: "+b);
            
    /* Narrowing Casting Ends Here */
            
    }
    
}